Mapping method of survivable virtual network

A virtual network and physical network technology, applied in the direction of network interconnection, data exchange network, data exchange through path configuration, etc., to achieve the effect of improving the mapping acceptance rate, increasing the acceptance rate, and improving resource utilization

Active Publication Date: 2014-05-21
BEIJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

[0004] The above-mentioned patents expand the survivability of the virtual network from different aspects, and provide backup mechanisms in different physical network failure scenarios. However, since they all adopt the method of reserving redundant resources for the virtual network, the survivability of the virtual network mapping (SVNE) problem challenge goes a step further

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  • Mapping method of survivable virtual network
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  • Mapping method of survivable virtual network

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] see figure 1 , an embodiment of the present invention provides a method for mapping a survivable virtual network, including the following steps:

[0029] Step 101: Obtain the physical network status;

[0030] Step 102: mapping virtual nodes to physical nodes;

[0031] Step 103: Map the virtual path to the working path and the backup path, if the mapping fails, reconfigure the backup resources of the physical network, and map the virtual path again.

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Abstract

The invention provides a mapping method of a survivable virtual network. The mapping method is characterized by comprising the steps of acquiring the state of a physical network; mapping virtual nodes to physical nodes; mapping a virtual route to a working path and a backup path, if the mapping is in failure, reconfiguring the backup resources of the physical network, and then remapping the virtual path. According to the mapping method, the resource use ratio of a bottom network and the receptance of the virtual network can be improved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a mapping method of a survivable virtual network. Background technique [0002] Network virtualization is considered to be a core attribute of future networks to overcome various problems caused by current network rigidity. In a network virtualization environment, virtual networks with different topologies, requirements, and protocols can share the same underlying physical network, thereby providing reliable services to network end users. [0003] At present, the mapping problem of survivable virtual network is attracting the interest of researchers, such as the patent No. 201110173662.5 (remapping method based on dynamic change of virtual network resource demand), which provides a dynamic A method for remapping part of virtual resources caused by changes. Including the determination of virtual resources that need to be remapped, and the process of mapping these resource...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/46H04L12/24H04L29/06
Inventor 王颖李文璟陈青云邱雪松芮兰兰
Owner BEIJING UNIV OF POSTS & TELECOMM
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